(n.) Captious disposition or manner.

accusation adverse criticism aspersion bad notices bad press captiousness carping cavil caviling censoriousness censure criticism exception faultfinding flak hairsplitting hit home thrust hostile criticism hypercriticalness hypercriticism imputation insinuation knock nagging niggle niggling nit nit-picking obloquy overcriticalness pestering pettifogging priggishness quibble quibbling rap reflection reprehension reproachfulness slam slur stricture swipe taking exception trichoschistism